Prasun Barua

A Current Transformer (CT) is an essential component in electrical systems, providing an accurate method for measuring current. It is widely used in power transmission and distribution systems, industrial plants, and electrical protection systems to monitor electrical current without directly measuring the high currents flowing through the primary conductors. This article will explore in detail how a current transformer works, its components, its applications, and technical considerations, with a thorough explanation and real-life examples. 1. Introduction to Current Transformers (CT) A Current Transformer (CT) is a type of transformer that is designed to measure high alternating currents in power systems by stepping them down to a safer, lower level that can be directly measured. CTs play a pivotal role in modern electrical systems by enabling measurement, protection, and control. They are commonly used in power grids, electrical substations, in